Apparatus for molding.



R. N. SARGENL APPARATUS ,CUR Momma. LPPUCWON m50 June l, w15,

f f (All, j d@ f R. N. SAHGENT.

APPARATUS FOH' MOLDING.

mLzcATloN FlLED iuNE I. 1913.

'Patented Dec. ISI, 1918.

narran erlirns rn'rnn'r onor-iron..

RALFH NBLSUII, SARGEN'I, OF ERTH AMBY, NEW JERSEY, ASSIGNO T0 THEROESS-LER. S: HASSLCHER CHEMICAL CO., .OF NEW YORK, N. Y., A CORP'ORATION 0FNEW YRK.

APPARATU FOR MQLDING.

Specification of Letters Iatent.

Patented Dec. 31, 1918.

Original application filed January 6, 1914. Serial No. 810,544. Dividedand this application led J'une 1,

T0 all w71 om. 'it 'may concern.'

Be it known that I, RALPH NELSON SAR- oax'i', a citizen of the UnitedStates of America, residing at. Perth Amboy, county of Middlesex, andState of New Jersey, have inventedcertain newand useful Improvements inApparatusl for Molding, of which the following is a, specification. l

My invention relates to apparatus for molding` and .has particularrelation toan apparatus for molding or forming substances which arefirst caused to assume a liquid, semi-liquid or plastic condition, are@un or forced into the molds in such condi.- itiongare solidified duringthe course or opl eration and then discharged in solidiied,.

molded form. I have illustrated the invention in connection with themolding ot' chemical substances into .solid forni, the particular objectillustrated being. themolding of such chemicals intoffcales or othershape of predetermined form, size and Weight# so that they may behandled A'Without'fbreaking as soon as they leave theinolding apparatusand may be readily utilized iii the arts, especially wherever eithertorni or weight is a t ported. Said table may be fixed in positiondesidei'atum. For example, if any given Weight of chemical is to be usedior' a par tiular reaction, a. certain number of cakes of the chemical,each cake having a weight. preferably bearing some multiple or unitrelationship to the desired Weight,l may he counted out WithoutWeighing7 and so utilized. Such method will greatly lessen the time of,operation and hence ehea'pen the process, as the presentelaborateweighing step at the time of use would bedone away with.

In connection with the application of my' inventionto,chemicalsubstances, the chemical must i'irst be fused or otherwise put into aliquid or sutliciently liquid condhionU then fed into themoldingapparatus, d solidilied at or before the timev of di e f distanceof travel between the fee and the point of discharge being p:

erably s suliciently great to permit the eenling or' Serial No. 31,362?.

In the following I have described, in connection with the accompanyingdrawings, one form of apparatus in connection with which my inventionmay be practised.

In said drawings, Figure 1 is a top plan view of the ap aratus, partsbeing removed for clearness ol) illustration;

Fig. 2 is a side elevation of the same, parts also being removed in thisview;

Fig. 3 is a rear end elevation, parts being removed; l

Fig. 4 is a front view; and

Fig. -5 is a rear View of one form section;

Fig. 6 is an edge view tions, face to face;

Fig. 7 is a top plan view of the, device of mold voi two mold sec-`shown in Figs. 4 and 5; and

Fig. 8 is a cross sectional View of a rality of mold sections similar tot ose shown in Figs. 4 and 5 butvshown adjacent each other so as to forma complete mold'.

Similar numerals of reference indicate In the drawings l indicates theframe or table on .which the other parts arev supor may .be providedwith truck Wheels 2, 2, and a guide Wheel 3 for example, by means ofWhichthe apparatus may be shifted from place to place as desired.Vertically arlsimilar parts throughout the several views.

ranged supports 4, 4, may be mounted 0n crossebars 5, 5, in turn carriedby frame 1,'

thereof (Fig. I3), each of said guide barsbeing shown as provided with abearing Way or track 7, on its inner edge.

8, 8 indicate horizontally arranged guide bars adjustably mounted on theother series of supports 4, 4, s0 as to have motion toward and away fromsaid supports in a horizon` tal direction, each of said bars 8 beingalined with the cmresponding fixed horizontal bar 6 and similarlyprovided with a bearing Way 13, 13, 13, 13 indicate vertically arranged.

rotatable shatts mounted in any veonvenlent manner (not, shown) at eat-hend of frame l, each shat't earrying a pair of sprocket Wheels 14. lltmounted on said shafts near the top and bottom thereof, eaeh pair ofsprocket, wheels being! the same distanee from each otherand tromthetraine 1 and eaeh sety ot sprocket wheels being equidistant;

from the, corresponding set. Vat, the opposite' end ot the trarne. I

The. respective. pairs otsproeket, wheels at the opposite endsiot theframe are ronlneeted together hy a pair of eliains. each ehaineomprising a` pluralitwy of vertieally arranged mold sections 15` 15'.linked t0-k ;ether and arranged longitudinally parallel to eaeh other torome, into rontaet, duringr l the rotation so as to form a eompletemold.

as hereinafter' described.` As illustrated (Figs. L8) eaehA ot the moldsections cornprises a haelt yplate. ttt carrying two pairs ot'oppositelrY extending lugs 17. 18 and 19. 20 one set. at. eaeh end ofthehaek plate. The front ot eaeh mold seetion is provided with lrecessesor eavities Q1. "21. each recess or eavity forming a. quarter of theeompleted molded t'orm. the reeesses heilig separated `trom eaeh other hv a continuous vertit'al rib lland h v `horizontalfrihs :22%. .22. thehorizontal rihsl henney eut away at their outer ends. kasA at 24. toprovide a hore i3 eonneeting the tompletedl mt ld forms vertirallyf`trom the sink hole '.tt' at the top to the lowermost mold form ot' theseries. 'lhe sinh hole Qt', is formed hy means'I ot' reeesses oryravities '27. 'It'. at 'the tops ot' eaelr see-tion. eat'h reet-sstermine' a quarter ot the sink hole. The, tops ot' the mold sections mayhe. eut away as at. 2S

to torm a continuous trough 39 when the.

oppositely disposed set-tions are 'lnougrht intory position t'aee tofiiee. 'lhe adjat'ent mold seetions are linked ogether h v pins` or rods3() passing throun'i lugs 17 and 2t) ot' one, seetion and lugs Ilt 'and1.5i ot the adjaeent; section. pins 3() also earlving rollers l,t-ilrollers Eil resting on lugs 1i' and lrollers 32 resting on lugs l0--'lhe teeth of the sproeltet. wheels lt are ot'sueh dimen sionsl as toreceive rodsBO, and thus hy the rotation ot the. driving sproeltet,wheels eause the endless ehain ot mold forms to he moved or pushedforward. The. parts are preterahly so arrangedthat, the. sprot-ket.wheels engage the rods 30' at a pointheneath lugs iti and above rollers3&2 resting on in 2U.

The, ehain ot' molds in its rotation is partially carried or supportedhy rollers Z in turn carried by trame. 1.

In the manner shown in the drawings it rtaplires t'onr mold seetions tomake a romplete. form (Fig. 8).'tihe oppositely arranged pairstit-sections on the respeetive chains registering with and tittingrelosely against, each other. The adjustahly mounted guide hars S. H.-are arranged so that their-trawl(- yways T. 't'. rontaet with rollersSil. 2K2, on rods 230 thus servin; r to press the one ehain ot' moldseetions against the taees ot' the other l chain ot' mold sertions whiehare held in position by tixed `inde hars t3. t3. the traeltwavs 44T. T;of said fixed gnide hars eontarting with rollers 151. 3;. on rods fit)ot' its chain ot' mold sections. I'-t indicates a hopper orfnn'nelthrough which the substance to he molded may be discharged intotrough if or into sink holes 26.

The sproeltet wheels ma v he driven by any suitable means, preterahl)vso as to provide for varia'hlespeeds. l have shown sneh a drivingmechanism (Figs.` `143) hert-hv vthe. sprocket wheels at the right handot the drawings (Figs. l and-i are utilized as the drivingmeans. rl`heshafts lZ-. i3 ot said sprocketwheels are extended downward and providedwith worm l(fear wheels 35( 35. in mesh with worm it' on shaft it?.Shaft 3T carries a bevel gear It at the end opposite worm Siti. saidbevel 2ite-.tr Zio' heine' in mesh with bevel gear 39 ou trietion plateiti. Frietion plate t() is driven hy trietion wheel All. on shaft -tlalongr whit-h it is movahle so as to eause triet-imrpiate L0 to t 'avelat a. greater or less rate ot` speed as may he desirable. Shatt- -tzlmayY he driven hy any convenient means. `l' have shown" sueh a means inFig. wherein 42% indieates an elet'- tiriefinotor havin a g';ear -t4 onvits armature in 'mesh with `ear if ear-ovini;` pinion ttt in mesh withgear lNon shaft l2.

` 'lhomolded material .drops into'a suitahle eonta'in'er (not showni atthe forward (let'tl end of the. maehinoas the mold seetions open. thepointed endtt' at. the. hottom ot' 'troughlth detat'hin'g: thesiniiheads hy eontart. therewith as the mold seetions open. the sinkheads passing down trough fttl to a 'suitable reeeptaele (not. shown).

. `Asstated ahove, one of 'the objects of nir invention is tohrmp: intoeertanrtorm suer ehetnleais as aresold -at the usual tempera- 'tm-e, hutmelt, when heated to ahigher tem# peinture. rlhe ehemieals"which mayrome ehemieal is heated in a suitable ressel, until the whole mass ismelted and in proper llqntd state; The, eased sodnnn eynnid then pouredinto tunnel 2H and Vthe naehine lit) liti

nasceva set in motion at the desired speed, The fused material flowsinto trough 29 through sini: holes into the molds so as to .ill up thesame,`enough surplus of the material remaining in the sink holes tocompletely fill the molds 'as tthe mass shrinks in cooling.v

The continuous motion of. the chains of mold sections between therespective guide bars and the pressure; exerted by the movable or springadjustableguide bars against said chains, causes the molds to cometogetherin proper registry and very closely and tightly against leachvother just before 'the funnel is reached and to continue in suchcondition for a' distance of travel sufficient to permit the moltenmaterial to solidify before the point of discharge or point of openingof the molds is reached. The apparatus is preferably of such length andthe speed of travel is usually so adjusted that the fused chemical. willhave time to cool off and solidify before the point of dis- A charge isreached but l may accelerate the cooling and solidifying' in anydesirable manner consistent with the nature of the chemical vworkedwith. For example l may blow cold air over the accessible surfaces ofthe molds or, if the chemical is not hygroscopic or not too hygroscopic,I may sprinkle Water over the backs ofthe molds. Cooling; means all mayof course be utilized to cool oii' the hot molds after giving up theircontents, so that the molds will be of a sulliciently low temperature tosolidify another charge of material which otherwise, owing to retainedheat, might be prevented from radiatingr enough heat to assume the solidstate before leaving?,` the molds.

In practical operation of the apparatus certaindmportant points havebecome evident in, order to insure successful use of the same andsuccessful practice of the process. For example, .itis of importancethat thel chains of mold sections be rather pushed than. pulled through.the apparatus, each section in turn being engaged and immediatelyroleascd'again by the driving means which in turn engages and releasesthe ad- Jaccnt section, the sections being thus lined up oner after theother, each section pushing against the one ahead of it. As the sectionsare oi preciso worlnnanship, cach section being as the mirror imago ofits opposite section, and they lit tightly against each other face tofarle as well as edge to edge in the respmctivc chains, a perfect andcomplete mold is formed so that the form cast will not be distorted.

Another important point relates to the forni the chemical. is intendedto be brought into. lt is ay significant fact that, up to the present.ehen'iicals, such as those named above, have been manufactured only intlio `form ol short sticks made manually in small tilting molds. lnresearch work on nanue factoring chemicals on a largel scale in orhaving special forms, l have observed that the form itself into whichsaid chemicals must be brought is of considerable importance.'

For example, it might appear desirable to forni the Ychemicals intoaVprismatic body having six or eight sharp .corners7 formed by theintersection of three or more planes, the lines of intersectionconvening at a point common to any of said planes. By many experiments Ihave found that a prismatic body having asl many corners as stated aboveis not a suitable form for the purposes of my invention, but that aSphere, ellipsoid, cylinder or a body formed by the intersection of thebounding lines of either of them with one of the others or a body formedby the intersection of the bounding lines of l either of said forms withprismatic bodies and variations obtained by the combinations of suchintersecting lines will all give suitable forms. There are some formswith sharp corners which may be easily producedby the practice of .mymethod and use of my apparatus, such as those obtained by laying planesthrough the ends of the aires of a sphere, ellipsoid7 etc., but theseare unsuitable for commercial purposes as far as chemicals areconcerned,although they may be Well suited for the manufacture of metallic bodies,for example.

The reason Why molds for forming prismatic bodies, especially thosehaving unequal axes,l having six or eight sharp corners, are notsuitable, is that, When opening,

a moldufor making such forms., in the actoi. discharging the moldedbody, scratches the product and breaks oif the corners so as to .mairethe same unsuitable for the market.

'lhcre are moreover considerable advantages which make my apparatus, asWell as tho product formed, a great improvement over the present stateof the art of finishing solid chemicals for the market. The presentmethod involves too much manuallabor to permitcthe supplying of lowpriced chemi# vals in special'forms; by my invention however, leansupply chemicals 1nv any desired `form or weight in commercialquantities and at slight expense. The same remarks apply to those'bodies of metal which lend themselves to treatment by my invention. The

made in the forni and proportion of parts and in the details ofconstruction asherein shown and described` without departing from thespirit or sacrificing any ofthe advantages of the invention and Itherefore reserve the right to make such-changes as lall within thescope of the appended claims. As'iiisl'aiices of ypossible changes Icite as examples the niaking of the apparatus as a whole either portableor fixed; the substituting' of molds of other `form `and type; the useof various means for actuating f the apparatus, and for varying thespeedthcreof; substitutingother means for breaky ity of the adjoiningelement of either chain ing oi' the sink heads, etc.

This application is a division of my ap-` plication Serial No. 810,544,iled January Vhat I claini and desire to secure by Let? ters Patent is ly y 1. In a. molding machine an element havs ing,` pairs ofhorizontzilly arranged quarter mold cavities adapted to be alined ineach of two movable, longitudinally parallel endless chains having thecavities of the inner elements register with each other, one

quarter of a inoldcavity forming with the horizontally adjacent cavityof the adjoiningelement of either chain one half of a mold, two of suchcorrespondingly formed but opposite halves (af-.a mold forming acomplete mold.

2. In a molding machine an elementhaving a plurality. of pairs ofhorizontally arranged quarter mold sections communicating with eachother in vertical series adapted to be alined in each of twomovahle,.longitudinally parallel endless chains having the cavities ofthe inner elements register vwith each other one quarter of a moldcavity forming with the horizontally adjacent cavone half of a inold',two of such correspondingly formed but opposite halves of a mold forminga complete mold having a single sink-hole at its top.

In ytestimony whereof I have signed this specification in the presenceof two subscribing Witnesses. y'

RALPH NELsoN SARGENT.

' Witnesses:

OTro K. ZWINGENBEBGER,' ARTHUR L. GARDNER.

